"I get physically ill when I have to leave the kids now," he said in an interview with GQ magazine.
But Beckham no longer stresses about tabloid intrusion on his family life: "I'm secure as a person, as a husband, as a dad," he added. "I've gone past the point of really worrying, caring,"
Beckham said when he is at home and spending time with the kids, he can often be found watching 'Frozen' with Harper "for the hundreth time" or binging on 'Friends' re-runs.
But although family is at his heart, the former footballer admitted he does miss the sport and feels a constant urge to step back on the field and play, - but that wouldn't suit his family.
"You know, maybe I could play another year in the U.S. If I was still living in L.A.," he added.
"I’d probably really seriously think about coming back for a year.
"But we’re living in London, and the kids are happy in the school."
The full interview is in US's GQ April issue.